ES2041808T3 - Vidrio de indice de refraccion medio adecuado para aplicaciones oftalmicas. - Google Patents

Vidrio de indice de refraccion medio adecuado para aplicaciones oftalmicas.

Info

Publication number
ES2041808T3
ES2041808T3 ES88310007T ES88310007T ES2041808T3 ES 2041808 T3 ES2041808 T3 ES 2041808T3 ES 88310007 T ES88310007 T ES 88310007T ES 88310007 T ES88310007 T ES 88310007T ES 2041808 T3 ES2041808 T3 ES 2041808T3
Authority
ES
Spain
Prior art keywords
ophthalmic applications
refraction index
index glass
glass suitable
medium refraction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES88310007T
Other languages
English (en)
Inventor
Jean Emile Boudot
Jean-Pierre Mazeau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corning Glass Works
Original Assignee
Corning Glass Works
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR8715278A external-priority patent/FR2622569B1/fr
Application filed by Corning Glass Works filed Critical Corning Glass Works
Application granted granted Critical
Publication of ES2041808T3 publication Critical patent/ES2041808T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Glass Compositions (AREA)

Abstract

ESTA INVENCION ES ACERCA DE CRISTALES PARTICULARMENTE UTILES EN LA FABRICACION DE LENTES MULTIFOCALES PARA APLICACIONES OFTALMICAS. LOS CRISTALES DE LA INVENCION MUESTRA UN INDICE REFRACTIVO ENTRE 1599 Y 1602, UN NUMERO ABBE ENTRE 40.5 Y 41.5, UNA DENSIDAD ENTRE 2.64 Y 2.66 G/CM3, UNA TRASMISION DE LA RADIACION VISIBLE A 400 NM A TRAVES DE UN ESPESOR DE 10 MM MAYOR QUE 83%, UNA TEMPERATURA DE REBLANDECIMIENTO ENTRE 670 Y 680 (GRADOS) C, UNA BIRREFRINGECINA MEDIDA ASI DESCRITA ENTRE -150 Y +150 NM/CM Y CONSISTE ESENCIALMENTE, EXPRESADA EN TERMINOS DE PORCENTAGE EN PESO DE OXIDO DE BASE DE:.
ES88310007T 1987-11-04 1988-10-25 Vidrio de indice de refraccion medio adecuado para aplicaciones oftalmicas. Expired - Lifetime ES2041808T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8715278A FR2622569B1 (fr) 1987-11-04 1987-11-04 Verre a indice de refraction moyen pour application ophtalmiques
US07/210,427 US4822758A (en) 1987-11-04 1988-06-23 Medium refractive index glass suitable for ophthalmic applications

Publications (1)

Publication Number Publication Date
ES2041808T3 true ES2041808T3 (es) 1993-12-01

Family

ID=26226313

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88310007T Expired - Lifetime ES2041808T3 (es) 1987-11-04 1988-10-25 Vidrio de indice de refraccion medio adecuado para aplicaciones oftalmicas.

Country Status (7)

Country Link
EP (1) EP0315353B1 (es)
JP (1) JP2683778B2 (es)
AR (1) AR242016A1 (es)
BR (1) BR8805703A (es)
CA (1) CA1320505C (es)
DE (1) DE3881827T2 (es)
ES (1) ES2041808T3 (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109867442B (zh) * 2019-04-24 2021-11-26 成都光明光电股份有限公司 光学玻璃
CN112028475B (zh) * 2020-09-11 2022-04-15 成都光明光电股份有限公司 光学玻璃和光学元件
CN112028474B (zh) * 2020-09-11 2022-04-15 成都光明光电股份有限公司 光学玻璃

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE551389A (es) * 1956-09-10
JPS59152240A (ja) * 1983-02-14 1984-08-30 Hoya Corp 光学ガラス
FR2550187B1 (fr) * 1983-08-02 1986-06-06 Corning Glass Works Verres de faible densite et de haut indice de refraction pour applications ophtalmiques et optiques
JPS5918131A (ja) * 1984-01-27 1984-01-30 Nippon Kogaku Kk <Nikon> 眼鏡レンズ用軽量ガラス

Also Published As

Publication number Publication date
CA1320505C (en) 1993-07-20
EP0315353A1 (en) 1989-05-10
EP0315353B1 (en) 1993-06-16
JP2683778B2 (ja) 1997-12-03
JPH01157429A (ja) 1989-06-20
BR8805703A (pt) 1989-07-18
DE3881827T2 (de) 1993-12-23
DE3881827D1 (de) 1993-07-22
AR242016A1 (es) 1993-02-26

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